目的 探究聚左旋乳酸在治疗外切眼袋术后下睑凹陷中的效果。方法 选取2022年11月-2023年3月我院收治的21例外切眼袋术后下睑凹陷的患者作为研究对象，采用聚左旋乳酸进行下睑凹陷部位注射治疗，观察治疗前后皮肤改善情况，计算总有效率。
Objective To investigate the efficacy of poly (L-lactic acid) application in the rejuvenation of hands, and to analyzethe safety of its application. Methods two subjects with aging problems of the hands were given subcutaneous injections of poly-L-lactic
